Franklin g



(No Model.)

F. G. BEH.

CIRCUIT CLosEE ECE ELECTRIC ANNUNCIATCES. No.` 245,931. Patented Aug. 23,1881.

UNITED STATES PATENT OFFICE.

FRANKLIN G. BEACH, OF CHICAGO, ILLINOIS, ASSIGNOR TO THE WESTERN I ELECTRIC MANUFACTURING COMPANY, OF SAME PLACE.

CIRCUIT-CLOSER FOR ELECTRIC ANNUNCIATORS.

SPECIFICATION forming part of Letters Patent No. 245,931, dated August 23, 1881,

Application filed July 1, 1881.

To all whom 'it may concern Be it known that I, FRANKLIN G. BEACH, of Chicago, Illinois, have discovered certain new and useful Improvements in Circuit-Closers for Electric Annunciators, of which the following is a full, clear, concise, and exact description.

In the drawings, Figure l is a front eleva tion of an annunciator embodying my invention, in which a portion ot' the drop is broken 1o away. Fig. 2 is a rear elevation thereof. Fig. 3 is a detail section of a similar annunciator, as indicated by lines X X ot' Figs. 1 and 2.

The annunciator-magnets are constructed in the usual manner and arranged upon an iron support, which may serve as a heel-piece and common ground-connectionsbrthelines passing through the electro-magnets.

I connect the insulated contact'points a ot' any number of annunciators together and to 2o one pole ot' the battery in the circuit of the signaling-instrument. The other pole of the battery maybe Grounded or connected with all springs or levers b of all the annunciators. The spring bis attached rigidly at its upper end z5 and normally stands away from contact-point a. The drop c is pivoted, as shown at point e, to the frame d ofthe annunciator. The weight of the drop when falling crowds the eccentric f against the spring with sufficient force to 3o bring the spring b into electric contact with contact-point of, as shown in Fig. 3. The cir-4 cuit is thus closed to battery through the sig maling-instrument g, which notities the attendant that a shutter of the connected annunciators has been thrown down. The shutter, it

will be seen, has an unobstructed fall until the eccentric touches the spring.A The force thus (No model.)

acquired is brought to bear directly upon the spring, and the shutter acts as a lever, the p01'- tion between the pivot and the spring, which 4o I have designated as eccentric j', being the shorter arm. The force of the falling drop is nearly spent before it is finally arrested by stop IL.

l have found my invention ot' great ndvan- 45 tage as a night-call in connection with the annunriators ot' a telephone-exchange system, where each subscribers individual line is connected with a separate calling annunciator.

I claitn- 5o l l. The combination of contact-point a and s1 ring or lever b with the shutter o of an electricannunciator, said shutter heilig pivoted at e and provided with eccentric f, whereby the circuit of a battery may be closed when the shutter falls, substantially as and for the purpose specified.

2. Theconlbinationofseveralelectricannullciators, each provided with an insulated contact-point, a, the points a ot' all the annuncia- 6o tors being connected'with one pole ot' a battery, and springs or levers b, one for each annunciator, said springs b being connected with the other pole ot' the battery, a signal-instrument, g, and shutters c pivoted at e, one for each annunciator, whereby the circuit ot1 the battery is closed through the signal-instrument when the shutter of an annunciator is thrown down.

FRANKLIN G. BEACH.

Witnesses:

LEROY B. FIRMAN, GEORGE P. BARTON. 

